CN210758373U - Height-adjustable's people's air defense door leaf maintenance spraying system - Google Patents
Height-adjustable's people's air defense door leaf maintenance spraying system Download PDFInfo
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- CN210758373U CN210758373U CN201921357488.8U CN201921357488U CN210758373U CN 210758373 U CN210758373 U CN 210758373U CN 201921357488 U CN201921357488 U CN 201921357488U CN 210758373 U CN210758373 U CN 210758373U
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Abstract
The utility model discloses a height-adjustable's people's air defense door leaf maintenance spraying system. The problem of among the prior art civil air defense door leaf manual work spray maintenance have consuming time power, spray inhomogeneous, highly unadjustable is solved. The system comprises a sliding mechanism, wherein a water tank is movably arranged on the sliding mechanism; the door leaf fixing module is arranged at the periphery of the sliding mechanism and comprises a template, and a locking assembly is arranged on the template; the water pipe is arranged on the sliding mechanism through a bracket, connected with the water tank and extends to the upper part of the door leaf fixing module on the door, and the spraying assembly is arranged on the water pipe; the support is including connecting the support column on slide mechanism, and it has the sleeve to articulate at the support column front end, and the sleeve cup joints with the water pipe, is equipped with the locking mechanism who fixes mutually with the water pipe on the sleeve. The utility model discloses a remove the water tank and can spray the maintenance to more door leafs, solved ordinary spraying system structure fixed, it is limited to spray the scope, and the door leaf of once maintenance is small in quantity, the problem of inefficiency.
Description
Technical Field
The utility model relates to a people's air defense door leaf curing means especially relates to a height-adjustable people's air defense door leaf curing spraying system.
Background
The civil defense door leaf is a door of a civil protection project entrance. Need maintain under certain humidity condition after pouring the shaping in the people's air defense door leaf production process, need carry out the watering maintenance to people's air defense door leaf during the maintenance, generally adopt artifical interval watering to people's air defense door leaf at present, fax people's air defense door leaf receives the uneven problem of interval time with the moisture content, has influenced the intensity of concrete to manual operation intensity of labour is big consuming time long, and work efficiency is low. Also there is the equipment that sprays the door leaf among the prior art, but these equipment spray the scope limited, can only spray the maintenance to a small number of people's air defense door leaves, need many sets of equipment when people's air defense door leaf is in large quantity, the cost is improved, spray not in place to people's air defense door leaf in the equipment in addition for people's air defense door leaf receives the humidity inhomogeneous. In addition, the height of a spray nozzle in the spraying equipment can not be adjusted, and for civil air defense door leaves with different thicknesses, the distance between the civil air defense door leaves is different, so that the problem of insufficient spraying range or excessive overlapping can occur, and the maintenance of the door leaves is influenced.
Disclosure of Invention
The utility model mainly solves the problems of time consuming and labor consuming existing in the manual spraying and maintaining of the civil air defense door leaf in the prior art, uneven spraying and influence on the concrete strength, and provides a height-adjustable civil air defense door leaf maintaining and spraying system.
The utility model discloses it is limited still to have solved the maintenance of civil air defense door leaf spray set among the prior art, and many sets of equipment are needed when civil air defense door leaf is in large quantity, improve the problem of cost, provide a maintenance of civil air defense door leaf spray system.
The utility model discloses still solved and sprayed the shower nozzle height and can not adjust in the current people's air defense door leaf maintenance spray set, sprayed the problem that the scope is not enough or excessively overlap, the influence is to the problem of the maintenance of door leaf, provides a people's air defense door leaf maintenance spray system.
The above technical problem of the present invention can be solved by the following technical solutions: a height-adjustable civil air defense door leaf maintenance spraying system, which comprises,
the sliding mechanism is movably provided with a water tank;
the door leaf fixing module is arranged at the periphery of the sliding mechanism and comprises a template for placing the door leaf, and a locking component for fixing the door leaf is arranged on the template;
the water pipe is arranged on the sliding mechanism through a bracket and moves synchronously with the water tank, the water pipe is connected with the water tank, the water pipe extends to the upper part of the door leaf fixing module on the door, and a plurality of spraying components are arranged on the water pipe;
the support comprises a support column which is rotatably connected to the sliding mechanism, a sleeve is hinged to the front end of the support column and is sleeved with a water pipe, and a locking mechanism which is fixed with the water pipe is arranged on the sleeve. The utility model discloses a structure that slide mechanism and door leaf spray set combined together, the water tank setting is on slide mechanism, and slide mechanism can drive the water tank and remove, and the door leaf is arranged through the fixed module of door leaf and is set up at slide mechanism periphery, is connected with water pipe and spray assembly on the water tank, and the water pipe is passed through to the water tank and spray assembly sprays on the door leaf. The maintenance can be sprayed to more door leaves through removing the water tank like this, has solved ordinary spraying system structure fixed, and the scope of spraying is limited, and the door leaf of once maintenance is small in quantity, the problem of inefficiency. And the combination slide mechanism only needs to set up one set of water tank, water pipe and spray assembly and just can spray more door leafs and maintain, need not to install many sets of equipment, and the structure is simpler, has reduced the cost of manufacture. When the water spraying device works, the sliding mechanism drives the water tank to move, the spraying component on the water pipe also moves above the peripheral door leaf fixing module and sprays, and the sliding mechanism moves back and forth repeatedly, so that the door leaf is sprayed and maintained circularly. The support adopts the support column to rotate to be connected in the slide mechanism both sides, and this support column can rotate and carry out the change that supports the angle to highly changing that the water pipe supported, the sleeve slides on the water pipe and can be fixed mutually with the water pipe through locking mechanism, makes like this and to adjust the distance between spray assembly and the door leaf on the water pipe, is used for adjusting the coverage that spray assembly sprayed to the door leaf, makes the system can be applicable to the door leaf spray maintenance of different thickness.
As a preferred scheme, slide mechanism includes the slide rail, cooperates the coaster of setting on the slide rail, the coaster includes the base and sets up pivot and the motor in the base bottom, and the motor passes through the gear box and links to each other with the pivot drive, is provided with the wheel respectively at pivot both ends, and the wheel is placed on the slide rail, the water tank is installed on the base. In the scheme, the pulley is arranged in a sliding fit manner with the sliding rail, the water tank is arranged on the pulley, and the pulley moves on the sliding rail to drive the water tank to move. The bottom of the pulley sliding seat is connected with two rotating shafts through a shaft, wheels are arranged at two ends of each rotating shaft, the two sliding rails are also arranged, the wheels are arranged on the sliding rails, the motor is fixed at the bottom of the base and is linked with one of the rotating shafts through a gear box, and the rotating shafts are driving rotating shafts. The motor works to drive the rotating shaft to rotate, so that the pulley slides on the sliding rail.
As a preferred scheme, the water pipe is transversely arranged on the upper portion of the water tank, the supporting columns are arranged on two sides of the base and upwards support and connect the water pipe, the door leaf fixing modules are arranged on two sides of the sliding mechanism, two sides of the water pipe respectively extend above the door lock fixing modules, a water inlet pipeline is arranged on the water pipe and extends into the water tank, a water pump is arranged in the water tank and is connected with an output end of the water pump, and the spraying components are connected on two sides of the water pipe and face the door lock fixing modules. The fixed module of lock is arranged along slide mechanism both sides in this scheme, then the water pipe is horizontal in the water tank top and through support fixed connection on the coaster base, and the water pipe both sides just are located the door leaf of both sides and fix the module like this, and spray assembly has a plurality of evenly distributed settings on the water pipe, and spray assembly aims at the fixed module of door leaf. Through the removal of coaster, the spraying assembly sprays the fixed module of all door leafs that the scope just covers both sides under the removal condition, has realized once spraying the maintenance to more door leafs. In addition, the door leaf fixing modules on two sides can be increased or decreased according to needs, the number of door leaves to be maintained can be flexibly controlled, and the sliding trolley only needs to slide between the arranged door leaf fixing modules.
As a preferred scheme, the system further comprises a control terminal, and the motor and the water pump are respectively connected with the control terminal. Control terminal is used for controlling motor and water pump work in this scheme, has control panel on the control terminal, can carry out input instruction in order to control motor and water pump work form, if input timing, distance driving, spray to and stop the driving, the instruction that sprays, make can spray the door leaf of different specifications. The control terminal is installed on the pulley and is conveniently connected with the motor and the water pump. The control terminal can also be installed beside the spraying system through longer connection, so that an operator can control the spraying system aside without operating on the pulley, and meanwhile, the spraying system can also control the spraying system in the sliding process of the pulley.
As a preferred scheme, still include the detection sensor who is used for detecting the door leaf on the fixed module of door leaf, detection sensor and control terminal are connected. In the scheme, the detection sensor detects whether a door leaf exists on the door leaf fixing module where the pulley is located currently, if the door leaf exists, the pulley moves in the original moving direction to continue spraying maintenance, and if the door leaf does not exist, the control terminal controls the motor to enable the pulley to move in the direction opposite to the original moving direction to perform spraying maintenance, so that reciprocating circulation spraying is performed on the door leaf.
As a preferred scheme, the door leaf fixing module further comprises a placing guide rail, and the templates are evenly placed on the placing guide rail at intervals. Increased in this scheme and placed the guide rail, should place the guide rail and have two, arrange at slide mechanism periphery, the template is placed on placing the guide rail for can make things convenient for movable mould board in a flexible way, adjust the mounted position. In addition, the template is horizontally placed on the placing guide rail, so that the whole door leaf is convenient to spray, and the spraying effect is better.
As an optimal scheme, the articulated department of support column and base is provided with angle fixed establishment, and angle fixed establishment is including adjusting the fixed plate, adjusts the fixed disk and installs on the base with support column articulated position, evenly is provided with a plurality of regulation holes around the centre of a circle on adjusting the fixed disk upper surface, be equipped with corresponding fixed orifices on the support column, wear to be equipped with spacing bolt in regulation hole and fixed orifices. In the scheme, the angle fixing mechanism is used for accurately controlling the rotation angles of the two side supporting columns, so that the two side supporting columns can rotate by the same angle conveniently. Rotate the support column during the use, rotate certain angle after make the fixed orifices on the support column and adjust the fixed orifices on the fixed disk and aim at, then insert spacing bolt and fix. The front end of the limit bolt can be fixed by a nut.
As a preferred scheme, locking mechanism includes setting up the grasping portion and the lock sleeve of cover on grasping portion in sleeve one end, is provided with a plurality of V-arrangement grooves on the grasping portion, divides into a plurality of jack catchs with grasping portion, and the lock sleeve has the shrink inner chamber of funnel-shaped, and the lock sleeve threaded connection is on the sleeve, and the shrink inner chamber compresses on grasping portion. This sleeve can move on the water pipe in this scheme to adapt to the support column and rotate angle regulation, through the lock sleeve of screwing after the support column regulation finishes, the shrink inner chamber extrusion jack catch of lock sleeve makes the jack catch shrink tightly embraces the water pipe, and the sleeve is fixed mutually with the water pipe like this.
As a preferred scheme, the locking assembly is provided with a plurality of locking assemblies which are respectively arranged on the periphery of the template, each locking assembly comprises a supporting rod fixed on the template, and a pressing plate and a fixing nut are arranged on the supporting rod. Locking Assembly sets up a plurality ofly in this scheme, and when people's air defense door leaf was placed on the template, a plurality of locking Assembly were fixed respectively to each limit of people's air defense door leaf to the realization is fixed whole people's air defense door leaf on the template.
Therefore, the utility model has the advantages that:
1. the water tank is arranged on the sliding mechanism, the sliding mechanism can drive the water tank to move, the door leaf is arranged on the periphery of the sliding mechanism through a door leaf fixing module, the water tank is connected with a water pipe and a spraying assembly, and water in the water tank is sprayed on the door leaf through the water pipe and the spraying assembly; the movable water tank can be used for spraying and maintaining more door leaves, and the problems that a common spraying system is fixed in structure, limited in spraying range, small in door leaf number during one-time maintenance and low in efficiency are solved.
2. The combined sliding mechanism can be used for spraying and maintaining more door leaves by only one set of equipment, a plurality of sets of equipment are not required to be installed, the structure is simpler, and the cost is reduced.
3. The distance between spraying assembly and the door leaf on the adjusting water pipe is used for adjusting the coverage of spraying assembly to the door leaf, so that the system can be suitable for the door leaf spraying maintenance of different thicknesses.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a top view of a partial structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 4 is a schematic structural view of the sleeve of the present invention;
fig. 5 is a schematic structural view of the locking sleeve of the present invention.
1-a water tank 2-a water pipe 3-a support rod 4-a support 5-a pressure plate 6-a fixed nut 7-a slide rail 8-a base 9-a motor 10-a rotating shaft 11-a wheel 12-a water inlet pipeline 13-a water pump 14-a control terminal 15-a placing guide rail 16-an adjusting fixed plate 17-an adjusting hole 18-a limiting bolt 19-a support column 20-a template 21-a door leaf 22-a convex edge 23-a sleeve 24-a grasping part 25-a claw 26-a locking sleeve 27-a spray component 28-a contraction inner cavity.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
the embodiment is a height-adjustable's civil air defense door leaf maintenance spraying system, as shown in fig. 1, including slide mechanism, the fixed module of door leaf, water pipe 2, locking Assembly. Wherein, the sliding mechanism is movably provided with a water tank 1; the door leaf fixing module is arranged at the periphery of the sliding mechanism, and comprises a template 20 for placing a door leaf 21, and a locking component for fixing the door leaf is arranged on the template; the locking assemblies are provided in plurality and are respectively arranged on the periphery of the template.
The water pipe 2 is arranged on the sliding mechanism through a bracket and moves synchronously with the water tank, the water pipe is connected with the water tank, the water pipe extends to the position above the door leaf fixing module on the door, and a plurality of spraying assemblies 27 are arranged on the water pipe; the support 4 comprises a support column 19 which is rotatably connected to the sliding mechanism, a sleeve 23 is hinged to the front end of the support column and is sleeved with a water pipe, and a locking mechanism fixed with the water pipe is arranged on the sleeve.
The locking assembly comprises a support rod 3 fixed on the template, and a pressure plate 5 and a fixing nut 6 are arranged on the support rod.
Specifically, the sliding mechanism comprises two sliding rails 7 arranged side by side and a pulley arranged on the sliding rails in a matching manner. The pulley includes base 8 and pivot 10 and the motor 9 of setting in the base bottom, and the pivot is passed through the bearing and is fixed in the base bottom, and the motor passes through the gear box and links to each other with the pivot drive, is provided with wheel 11 respectively at the pivot both ends, still installs the electric cabinet on the base bottom, for each equipment power supply. The wheel is placed on the slide rail, and the wheel adopts to lean on interior one side to be provided with the card edge, and the wheel card is on the slide rail, and water tank 1 installs on the base.
The water pipe 2 is transversely arranged on the upper part of the water tank, the supports are arranged on two sides of the base, and the supports are upwards supported and connected on the water pipe. As shown in fig. 2, the door leaf fixing module is provided with a plurality of modules which are arranged on two sides of the sliding mechanism along the length direction, two sides of the water pipe are respectively extended above the door lock fixing module, a water inlet pipeline 12 is arranged on the water pipe and extends into the water tank, a water pump 13 is arranged in the water tank and is connected with an output end of the water pump, and the spraying components are connected on two sides of the water pipe and face towards the door lock fixing module. The spray assembly comprises a branch pipeline and a spray head, wherein the branch pipeline is connected to a water pipe, the spray head is arranged at the front end of the branch pipeline, water flows out of the water tank and enters the water pipe, and the spray head sprays out of the branch pipeline. The system comprises a control terminal 14, the control terminal is installed on the pulley, and the motor and the water pump are respectively connected with the control terminal. The control terminal is provided with a control panel which can input instructions to control the working modes of the motor and the water pump, such as inputting timing, distance driving and spraying instructions, and stopping driving and spraying instructions, so that door leaves of different specifications can be sprayed.
In order to enable the pulley to move back and forth on the sliding rail, the door leaf can be sprayed in a reciprocating cycle, a detection sensor for detecting whether the door leaf is arranged on the door leaf fixing module is arranged on the water pipe or the pulley, and the detection sensor is connected with the control terminal.
The door leaf fixing module further comprises a placing guide rail 15, and the templates are evenly placed on the placing guide rail at intervals. As shown in fig. 1, the supporting rod is vertically arranged on the template, the lower end of the supporting rod penetrates through the template and is welded with the bottom of the template, the pressing plate is pressed on the edge of the door leaf, and the fixing nut is screwed down to tightly press the pressing plate on the door leaf to form fixing.
As shown in fig. 3, the hinged position of the supporting column and the base is provided with an angle fixing mechanism, the angle fixing mechanism comprises an adjusting fixing plate 16, the adjusting fixing plate is installed on the base and is hinged with the supporting column, namely, a plurality of adjusting holes 17 are uniformly formed in the upper surface of the adjusting fixing plate around the circle center according to the hinged seat of the supporting column, the supporting column is provided with corresponding fixing holes, and limiting bolts 18 are arranged in the adjusting holes and the fixing holes in a penetrating manner. After the support column is rotated to adjust, the adjusting hole corresponds to the fixing hole, a limiting bolt is inserted into the adjusting hole and the fixing hole to fix, and a nut can be further arranged at the front end of the limiting bolt to fasten.
As shown in fig. 4 and 5, the locking mechanism comprises a grip portion 24 arranged at one end of the sleeve 23 and a locking sleeve 26 fitted over the grip portion, the grip portion being provided with a plurality of V-shaped grooves dividing the grip portion into a plurality of jaws 25, the locking sleeve having a funnel-shaped narrowing lumen 28, the locking sleeve being screwed onto the sleeve, the narrowing lumen being compressed over the grip portion. After the support column is adjusted, the locking sleeve is screwed, the clamping jaw is extruded by the contraction inner cavity of the locking sleeve, so that the clamping jaw is contracted to tightly hold the water pipe, and the sleeve is fixed with the water pipe.
When the civil air defense door leaf placing device is used, the civil air defense door leaf is hung above the template through the crane to be placed, the jack is pulled out of the supporting rod at the moment, the civil air defense door leaf is placed on the template in a rotating mode around the lock rod, and the door leaf can be placed on the template smoothly. After the door leaf is placed, the supporting rod is erected and inserted into the jack, and the supporting rod is fixed at the other end of the template through a fastening nut. And then the fixing nut is screwed down, so that the pressing plate is tightly pressed on the civil air defense door leaf to fix the civil air defense door leaf. The pulley moves along one direction of the sliding rail under the control of the control terminal, when the pulley reaches the position of a door leaf fixing module, the detection sensor detects whether a door leaf exists, if not, the pulley is controlled by the control terminal to move in the opposite direction, and if so, the water pump is controlled to work to spray and maintain the door leaf. And spraying for a certain time, then moving to the next door leaf fixing module, and repeating the operations to ensure that the pulley moves on the sliding rail in a reciprocating manner and the door leaves on two sides are sprayed and maintained.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms water tank, water pipe, support bar, bracket, pressure plate, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (9)
1. The utility model provides a height-adjustable's people's air defense door leaf maintenance spraying system which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the sliding mechanism is movably provided with a water tank;
the door leaf fixing module is arranged at the periphery of the sliding mechanism and comprises a template for placing the door leaf, and a locking component for fixing the door leaf is arranged on the template;
the water pipe is arranged on the sliding mechanism through a bracket and moves synchronously with the water tank, the water pipe is connected with the water tank, the water pipe extends to the upper part of the door leaf fixing module on the door, and a plurality of spraying components are arranged on the water pipe;
the support comprises a support column which is rotatably connected to the sliding mechanism, a sleeve is hinged to the front end of the support column and is sleeved with a water pipe, and a locking mechanism which is fixed with the water pipe is arranged on the sleeve.
2. The height-adjustable civil air defense door leaf maintenance spraying system as claimed in claim 1, wherein the sliding mechanism comprises a sliding rail, a pulley cooperatively arranged on the sliding rail, the pulley comprises a base, a rotating shaft arranged at the bottom of the base and a motor, the motor is in driving connection with the rotating shaft through a gear box, wheels are respectively arranged at two ends of the rotating shaft, the wheels are placed on the sliding rail, and the water tank is installed on the base.
3. The height-adjustable civil air defense door leaf maintenance spraying system as claimed in claim 2, wherein the water pipe is horizontally arranged on the upper part of the water tank, the supporting columns are hinged on two sides of the base and are upwards supported and connected with the water pipe, the door leaf fixing modules are arranged on two sides of the sliding mechanism, two sides of the water pipe respectively extend above the door lock fixing modules, a water inlet pipeline arranged on the water pipe extends into the water tank, a water pump is arranged in the water tank and is connected with an output end of the water pump, and the spraying components are connected on two sides of the water pipe and face the door lock fixing modules.
4. The height-adjustable civil air defense door leaf maintenance spraying system as claimed in claim 3, which is characterized by further comprising a control terminal, wherein the motor and the water pump are respectively connected with the control terminal.
5. The height-adjustable civil air defense door leaf maintenance spraying system as claimed in claim 4, which is characterized by further comprising a detection sensor for detecting the door leaf on the door leaf fixing module, wherein the detection sensor is connected with the control terminal.
6. The height-adjustable civil air defense door leaf maintenance spraying system as claimed in any one of claims 1 to 5, wherein the door leaf fixing module further comprises a placing guide rail, and the templates are evenly spaced and flatly placed on the placing guide rail.
7. The height-adjustable civil air defense door leaf maintenance spraying system as claimed in claim 3, wherein an angle fixing mechanism is arranged at the hinged position of the supporting column and the base, the angle fixing mechanism comprises an adjusting fixing plate, the adjusting fixing plate is arranged on the base at the hinged position with the supporting column, a plurality of adjusting holes are uniformly arranged on the upper surface of the adjusting fixing plate around the circle center, the supporting column is provided with corresponding fixing holes, and limiting bolts are arranged in the adjusting holes and the fixing holes in a penetrating manner.
8. The height-adjustable civil air defense door leaf curing and spraying system as claimed in claim 1, wherein the locking mechanism comprises a gripping part arranged at one end of the sleeve and a locking sleeve sleeved on the gripping part, the gripping part is provided with a plurality of V-shaped grooves to divide the gripping part into a plurality of claws, the locking sleeve is provided with a funnel-shaped shrinkage cavity, the locking sleeve is connected to the sleeve in a threaded manner, and the shrinkage cavity is compressed on the gripping part.
9. The height-adjustable civil air defense door leaf maintenance spraying system as claimed in claim 1, wherein the locking assembly comprises a plurality of locking assemblies respectively arranged on the periphery of the formwork, the locking assemblies comprise supporting rods fixed on the formwork, and pressing plates and fixing nuts are arranged on the supporting rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921357488.8U CN210758373U (en) | 2019-08-20 | 2019-08-20 | Height-adjustable's people's air defense door leaf maintenance spraying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921357488.8U CN210758373U (en) | 2019-08-20 | 2019-08-20 | Height-adjustable's people's air defense door leaf maintenance spraying system |
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| Publication Number | Publication Date |
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| CN210758373U true CN210758373U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921357488.8U Active CN210758373U (en) | 2019-08-20 | 2019-08-20 | Height-adjustable's people's air defense door leaf maintenance spraying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117341040A (en) * | 2023-11-22 | 2024-01-05 | 河北亓耳机械设备有限公司 | Maintenance device and method for deformation-preventing and explosion-preventing civil air defense door |
-
2019
- 2019-08-20 CN CN201921357488.8U patent/CN210758373U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117341040A (en) * | 2023-11-22 | 2024-01-05 | 河北亓耳机械设备有限公司 | Maintenance device and method for deformation-preventing and explosion-preventing civil air defense door |
| CN117341040B (en) * | 2023-11-22 | 2024-05-17 | 河北亓耳机械设备有限公司 | Maintenance device and method for deformation-preventing and explosion-preventing civil air defense door |
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